Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549904 | Process for the preparation of pellets | Katsuya Uehara, Keiji Saito, Hideyuki Michiki, Kenichi Yaginuma | 1985-10-29 |
| 4435276 | Method of treating heavy oil | Koichi Washimi, Tsuneo Tanji | 1984-03-06 |